Date: Mon, 27 Jan 1997 20:54:07 -0800 From: David Greenman <dg@root.com> To: jlrobins@zappa.cs.uncc.edu (James Robinson) Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Probs w/SMC Etherpower in 100tx mode Message-ID: <199701280454.UAA13821@root.com> In-Reply-To: Your message of "Mon, 27 Jan 1997 21:00:17 EST." <9701280200.AA19595@zappa.cs.uncc.edu>
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>[Running 2.1.6] > >We just upgraded our twisted pair hub to a 100Mbit switch, so >now I'd like to take full use of the 100mb bandwidth. However, >I'm now getting lots of "Oerrs" reported by netstat -I when trying >to send to another box running at 100Mbit on the same switch. When >sending to a 10bt only box on the switch, all seems fine, and I'm >getting xfer speeds at ~900K / sec. But when talking to another >box running 100tx, I'm getting ~30 -> ~75K / s. > >When I reverse the data flow (sending from Sparc Ultra 1 to the >FreeBSD box), I'm getting ~3.5Mbyte / second. > >All of the ports on the switch are set for autoconfigure. The >BSD box autoconfigs 100tx at probe / attach time. It only >seems to support simplex, whereas the sparc configs full duplex. > >Any pointers / suggestions? Try configuring the switch ports for half duplex for the FreeBSD machines. We don't currently support full duplex in any of the 100Mbps drivers (all it is a personal priority of mine to remedy this some day). -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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